v2 new feature - Quick Graph

Previously this command allowed you to display only one available
hydrograph at a time. It is now possible to use the command several
times in succession to superimpose two or more hydrographs on the same
graphical display.

Active hydrographs are indicated by
a checkmark on the menu list. Hydrographs that are currently available
are shown in regular type whereas hydrograph arrays that have not yet
been filled are ‘grayed’ out.

All of the checkmarks can be cleared by using the Clear All
Hydrographs menu option.